On: Show HN: Mechanical Watch with LED Lights

[astennumero]

Yeah. That I understand. What I would like to know is what this generator looks like. How does it work? How can springs power a generator? I would like to understand how they made a generator that small.

[pulvinar → astennumero]

I'm also curious.

I'd bet that they use a smaller version of a pancake generator like [0]. And power it through a gear train from four mainsprings as it says in TFA.

[0] https://www.sciencedirect.com/science/article/abs/pii/S03062...